--- product_id: 185856136 title: "5-3500MHz RF WideBand Amplifier 20dB High Gain Low Noise LNA Amplifier with Shielding Shell" brand: "aymario" price: "VT4255" currency: VUV in_stock: true reviews_count: 8 category: "Aymario" url: https://www.desertcart.vu/products/185856136-5-3500mhz-rf-wideband-amplifier-20db-high-gain-low-noise store_origin: VU region: Vanuatu --- # 20dB stable high gain 5-3500MHz ultra-wideband 1.3dB ultra-low noise figure 5-3500MHz RF WideBand Amplifier 20dB High Gain Low Noise LNA Amplifier with Shielding Shell **Brand:** aymario **Price:** VT4255 **Availability:** ✅ In Stock ## Summary > 🚀 Amplify your signal, amplify your reach — never miss a beat in the wireless world! ## Quick Answers - **What is this?** 5-3500MHz RF WideBand Amplifier 20dB High Gain Low Noise LNA Amplifier with Shielding Shell by aymario - **How much does it cost?** VT4255 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/185856136-5-3500mhz-rf-wideband-amplifier-20db-high-gain-low-noise) ## Best For - aymario enthusiasts ## Why This Product - Trusted aymario brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Consistent 20dB Gain:** Delivers powerful, stable amplification for crystal-clear signal reception. - • **Ultra-Low Noise Floor:** Minimizes interference with a noise figure as low as 1.3dB for pristine clarity. - • **Shielded for Performance:** Robust shielding shell ensures minimal external interference and maximum reliability. - • **Plug & Play Compatibility:** SMA connector and 3.3-6V supply voltage make integration seamless for pros. - • **Unmatched Frequency Range:** Covers an expansive 5-3500MHz spectrum to future-proof your RF setup. ## Overview The 5-3500MHz RF WideBand Amplifier by AYMARIO is a high-performance low noise amplifier featuring a broad frequency range, a stable 20dB gain, and an ultra-low 1.3dB noise figure. Designed with a shielding shell and SMA connector, it enhances RF front-end circuits by extending communication distance and improving signal clarity, making it ideal for professional-grade radio frequency applications. ## Description . Specifications: Working Frequency: 5-3500MHz Gain: 20dB(typical) Noise Figure: 1.3(typical) Max. Output Power: +20dBm (100mW)@1dB compression point Working Current: 80mA (5V) Power Supply Voltage: 3.3-6VDC System Impedance: 50Ω Connector: SMA Test Data: F=5Mhz gain=23dB F=30Mhz gain=23dB F=100Mhz gain=23dB F=150Mhz gain=23dB F=420Mhz gain=22dB F=1500Mhz gain=20dB F=3000Mhz gain=18.7dB F=3500Mhz gain=17.6dB Package Includes: 1 x Amplifier Review: 20dB Gain - UPDATE! May 24, 2023 WOW! I have a Uniden BCT15X scanner, and I use a 150MHz dipole antenna to receive county EMS, MURS, Gov't emergency, and aircraft. I connected this LNA to my coax, and I am absolutely blown away by the difference. I now get every surrounding county's EMS dispatch at a solid 5 bars. Without the LNA, I receive Stanly county dispatch on a clear day wavering between 2 and 3 bars. With this LNA, it's a solid 5 bars, and in a straight line, Stanly county dispatch is 44 miles from my house! At this point it is clear that the only reason I am not receiving other counties is because I don't have them programmed into the scanner. What's even more impressive is that I can now receive the 444.4500MHz repeater in Dallas, NC, at a full 5 bars! And let me remind you that I am using a 150MHz dipole. The 444.4500 repeater is 35 miles away. Without the LNA, I'm lucky to receive this repeater at all on this antenna. Today I will take down my dipole and put up my old Radio Shack "Sputnik" scanner antenna. I can hardly wait to see what I can receive. If you use a scanner, this LNA is invaluable. Why didn't I think of this sooner? Review from January 28, 2023: I am using this for my TinyGS ground station, and it is every bit of 20dB gain in the 433 MHz range. Barely gets warm. Good little amplifier. So clearly, this is a version of the SPF 5189 low-noise LNA. This is a well-known amplifier that has been around through several revisions, and there are many videos and blogs that can attest to its performance. It begins to roll off around about 700 MHz, and it is rated for 18.7dB gain at 900 MHz. I am seeing a solid 20dB in the 400 - 450 MHz range. This amp's noise floor is measured to be 0.6 dB at 900 MHz, so that puts it in the ultra-low-noise category. However, I see that this LNA has been discontinued, so when current stock is depleted, it will no longer be available. That is quite unfortunate, because given my research, there is no other LNA that can match its performance in this price range. That being the case, I think I might purchase a backup. I am very pleased with the performance of this LNA. Review: Works great - I wired this into USB for BiasT, and it’s strong enough to pull Inmarsat-C and JAERO. So far so good. ## Features - Wide measure frequency：This amplifier has a wide frequency range of 5-3500MHz, and large dynamic range +20dBm@1dBP - Great performance：It has stable gain 20dB typical, and small noise figure 1.3dB typical - Main purpose：It is especially suitable for all kinds of radio frequency receiving front-end circuit to extend communication distance - Add shielding shell：The broadband low noise RF amplifier is designed with shielding shell ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07PRHL246 | | Best Sellers Rank | #61,407 in Electronics ( See Top 100 in Electronics ) #384 in Audio Component Amplifiers | | Brand Name | AYMARIO | | Customer Reviews | 4.1 4.1 out of 5 stars (40) | | Item Weight | 0.01 Kilograms | | Manufacturer | AYMARIO | | Maximum Supply Voltage | 6 Volts (DC) | | Minimum Supply Voltage | 3.3 Volts (DC) | | Model | pdnuh2g10g | | Mounting Type | Surface Mount | | Output Power | 100 Milliwatts | | Specification Met | FCC | | Supply Current | 80 Milliamps | | UPC | 703633904362 | | Voltage | 5 Volts | ## Product Details - **Manufacturer:** AYMARIO - **Maximum Supply Voltage:** 6 Volts (DC) - **Minimum Supply Voltage:** 3.3 Volts (DC) - **Mounting Type:** Surface Mount - **Voltage:** 5 Volts ## Images ![5-3500MHz RF WideBand Amplifier 20dB High Gain Low Noise LNA Amplifier with Shielding Shell - Image 1](https://m.media-amazon.com/images/I/61tmjJWvHUL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ 20dB Gain *by D***D on January 28, 2023* UPDATE! May 24, 2023 WOW! I have a Uniden BCT15X scanner, and I use a 150MHz dipole antenna to receive county EMS, MURS, Gov't emergency, and aircraft. I connected this LNA to my coax, and I am absolutely blown away by the difference. I now get every surrounding county's EMS dispatch at a solid 5 bars. Without the LNA, I receive Stanly county dispatch on a clear day wavering between 2 and 3 bars. With this LNA, it's a solid 5 bars, and in a straight line, Stanly county dispatch is 44 miles from my house! At this point it is clear that the only reason I am not receiving other counties is because I don't have them programmed into the scanner. What's even more impressive is that I can now receive the 444.4500MHz repeater in Dallas, NC, at a full 5 bars! And let me remind you that I am using a 150MHz dipole. The 444.4500 repeater is 35 miles away. Without the LNA, I'm lucky to receive this repeater at all on this antenna. Today I will take down my dipole and put up my old Radio Shack "Sputnik" scanner antenna. I can hardly wait to see what I can receive. If you use a scanner, this LNA is invaluable. Why didn't I think of this sooner? Review from January 28, 2023: I am using this for my TinyGS ground station, and it is every bit of 20dB gain in the 433 MHz range. Barely gets warm. Good little amplifier. So clearly, this is a version of the SPF 5189 low-noise LNA. This is a well-known amplifier that has been around through several revisions, and there are many videos and blogs that can attest to its performance. It begins to roll off around about 700 MHz, and it is rated for 18.7dB gain at 900 MHz. I am seeing a solid 20dB in the 400 - 450 MHz range. This amp's noise floor is measured to be 0.6 dB at 900 MHz, so that puts it in the ultra-low-noise category. However, I see that this LNA has been discontinued, so when current stock is depleted, it will no longer be available. That is quite unfortunate, because given my research, there is no other LNA that can match its performance in this price range. That being the case, I think I might purchase a backup. I am very pleased with the performance of this LNA. ### ⭐⭐⭐⭐⭐ Works great *by M***E on August 21, 2024* I wired this into USB for BiasT, and it’s strong enough to pull Inmarsat-C and JAERO. So far so good. ### ⭐⭐⭐⭐ Just trying it on police scanner *by J***T on December 8, 2024* So far nooa bout it for now ## Frequently Bought Together - 5-3500MHz RF WideBand Amplifier 20dB High Gain Low Noise LNA Amplifier with Shielding Shell - SDTC Tech 5pcs Coaxial Coax Cable Assembly SMA Male to SMA Male Antenna Extender Cable Adapter Jumper(6 inch/15cm) - 30-4000MHz 40dB RF Broad Band Amplifier Module High Gain Amplifier Board for FM HF VHF/UHF --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.vu/products/185856136-5-3500mhz-rf-wideband-amplifier-20db-high-gain-low-noise](https://www.desertcart.vu/products/185856136-5-3500mhz-rf-wideband-amplifier-20db-high-gain-low-noise) --- *Product available on Desertcart Vanuatu* *Store origin: VU* *Last updated: 2026-05-18*